GC-MS Determination of Fumaric Ester Preservatives in Furnitures and Textiles

A method for determination of 3 fumaric ester preservatives, including dimethyl fumarate (DMF), diethyl fumarate (DEF) and monoethyl fumarate (MEF), in furnitures and textiles by GC-MS was proposed. The 3 preservatives in sample were extracted ultrasonically with ethylacetate and the extract was concentrated to 2 mL in a rotary evaporator at 30 ℃. After diluting to 5.0 mL with ethylacetate, the solution was used for GC-MS analysis. DB-FFAP column was used for separation, and selected ion monitoring mode was adopted in MS measurements. Linearity ranges of DMF and DEF were kept from 0.05 to 5.00 mg·L-1, and MEF from 0.10 to 10.00 mg·L-1. Values of limit of determination (10S/N) found were 0.01, 0.01 and 0.02 mg·kg-1 respectively. Tests for recovery and precision were made by standard addition method at 3 different concentration levels, values of recovery found were more than 80% and RSD′s (n=6) less than 5.0%.